<form action="/aircraft/" method="post">
    <label><span>飞机编号:</span></label>
    <input type="text" name="airno" style="width: 120px">
    <label><span>飞机类型:</span></label>
    <input type="text" name="airtype" style="width: 120px">
    <label><span>生产国:</span></label>
    <input type="text" name="location" style="width: 120px">
    <input type="submit" value="查询">
</form>